CN109102775A - organic light emitting diode compensation circuit, display panel and display device - Google Patents
organic light emitting diode compensation circuit, display panel and display device Download PDFInfo
- Publication number
- CN109102775A CN109102775A CN201811010765.8A CN201811010765A CN109102775A CN 109102775 A CN109102775 A CN 109102775A CN 201811010765 A CN201811010765 A CN 201811010765A CN 109102775 A CN109102775 A CN 109102775A
- Authority
- CN
- China
- Prior art keywords
- signal line
- transistor
- high level
- level signal
- control signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3258—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2230/00—Details of flat display driving waveforms
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/043—Compensation electrodes or other additional electrodes in matrix displays related to distortions or compensation signals, e.g. for modifying TFT threshold voltage in column driver
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
- G09G2310/067—Special waveforms for scanning, where no circuit details of the gate driver are given
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
- G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel
Abstract
The invention discloses a kind of Organic Light Emitting Diode compensation circuit, display panel and display devices, comprising: the first transistor, second transistor, third transistor, the 4th transistor, storage capacitance and Organic Light Emitting Diode；The grid of the first transistor and the electrical connection of the first scan signal line, the first pole and data signal line electrical connection, the second pole and first node electrical connection；The grid of second transistor and the electrical connection of the first LED control signal line, the first pole and the electrical connection of first voltage signal wire, the second pole and second node electrical connection；The grid and first node of third transistor are electrically connected, the first pole and second node electrical connection, the second pole and the electrical connection of third node；The grid and first control signal line of 4th transistor are electrically connected, the first pole and sensing signal line electrical connection, the second pole and second node electrical connection.Organic Light Emitting Diode compensation circuit provided by the invention has the function of external compensation, can promote working performance.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of Organic Light Emitting Diode compensation circuit, display surface
Plate and display device.
Background technique
With the development of display technology, liquid crystal display (LCD, Liquid Crystal Display) and organic light emission two
Pole pipe (OLED, Organic Light Emitting Diode) the display equipment of display as two kinds of mainstreams, more and more extensively
It is applied in various portable electronic devices generally.
Liquid crystal display is non-light emitting device, and Organic Light Emitting Diode is a kind of selfluminous element.OLED display tool
There are faster reaction speed, higher contrast and broader visual angle, therefore, OLED display is increasingly by the weight of people
Depending on.
In the OLED display that the prior art provides, shone using pixel-driving circuit driving OLED.
Since the light emission luminance of OLED is related with the size of current for flowing through OLED, so in pixel-driving circuit, driving
The threshold voltage that the electric property of thin film transistor (TFT) will have a direct impact on display effect, especially thin film transistor (TFT) often floats
It moves, so that the problem of brightness irregularities occurs in entire OLED display device.In order to improve the display effect of OLED, will generally lead to
It crosses pixel-driving circuit and pixel compensation is carried out to OLED.
The usual circuit structure of the pixel-driving circuit that the prior art provides is complicated, increases process costs, increases pixel driver
Circuit complexity.
Summary of the invention
In view of this, the present invention provides a kind of Organic Light Emitting Diode compensation circuit, display panel and display devices.
The present invention provides a kind of Organic Light Emitting Diode compensation circuit, comprising: the first transistor, second transistor, third
Transistor, the 4th transistor, storage capacitance and Organic Light Emitting Diode；The grid of the first transistor and the first scan signal line
Electrical connection, the first pole of the first transistor and data signal line electrical connection, the second pole of the first transistor and first node are electrically connected
It connects；The grid of second transistor and the electrical connection of the first LED control signal line, the first pole of second transistor and first voltage letter
The electrical connection of number line, the second pole of second transistor and second node electrical connection；The grid and first node of third transistor are electrically connected
It connects, the first pole of third transistor and second node electrical connection, the second pole of third transistor and the electrical connection of third node；4th
The grid and first control signal line of transistor are electrically connected, the first pole of the 4th transistor and sensing signal line electrical connection, and the 4th
Second pole of transistor and second node electrical connection；The first pole plate and first node of storage capacitance are electrically connected, storage capacitance
Second pole plate and second node electrical connection；First pole of Organic Light Emitting Diode and the electrical connection of third node, organic light-emitting diodes
Second pole of pipe and the electrical connection of second voltage signal wire.
The present invention provides a kind of display panel, comprising: substrate；The semiconductor of the first transistor, is set on substrate；Second
The semiconductor of transistor, is set on substrate；The semiconductor of third transistor, is set on substrate；4th transistor is partly led
Body is set on substrate；Gate insulation layer covers the semiconductor of the first transistor, the semiconductor of second transistor, third transistor
Semiconductor, the 4th transistor semiconductor；The grid of the first transistor, on gate insulation layer and with the first transistor
Semiconductor overlapping；The grid of second transistor, the semiconductor on gate insulation layer and with second transistor are Chong Die；Third is brilliant
The grid of body pipe, the semiconductor on gate insulation layer and with third transistor are Chong Die；The grid of 4th transistor is located at grid
Semiconductor on insulating layer and with third transistor is Chong Die；First pole plate of storage capacitance is set on substrate and with
The gate overlap of three transistors；Auxiliary insulating layer covers the grid of the first transistor, the grid of second transistor, third crystal
The grid of pipe, the grid of the 4th transistor, storage capacitance the first pole plate；Second pole plate of storage capacitance, is set on substrate
And it is Chong Die with the first pole plate；Interlayer insulating film covers the second pole plate of storage capacitance；First scan signal line is arranged in base
On plate and extend in a first direction；Data signal line is disposed on the substrate and extends in a second direction；Second direction and
The intersection of one direction；First LED control signal line, is disposed on the substrate and extends in a first direction；First voltage signal wire,
It is disposed on the substrate and extends in a second direction；First control signal line is disposed on the substrate and extends in a first direction；
Sensing signal line is disposed on the substrate and extends in a second direction；The grid of the first transistor and the first scan signal line electricity
The first of connection, the first pole of the first transistor and data signal line electrical connection, the second pole of the first transistor and storage capacitance
Pole plate electrical connection；The grid of second transistor and the electrical connection of the first LED control signal line, the first pole of second transistor and the
The electrical connection of one voltage signal line, the second pole of second transistor and the second pole plate electrical connection of storage capacitance；Third transistor
Grid and the electrical connection of the first pole plate of storage capacitance, the first pole of third transistor and the second pole plate electrical connection of storage capacitance；
The grid and first control signal line of 4th transistor are electrically connected, the first pole of the 4th transistor and sensing signal line electrical connection,
Second pole of the 4th transistor and the second pole plate electrical connection of storage capacitance.
The present invention provides a kind of display device, including display panel provided by the invention.
Compared with prior art, Organic Light Emitting Diode compensation circuit, display panel and display device provided by the invention,
At least realize it is following the utility model has the advantages that
Organic Light Emitting Diode compensation circuit has the function of external compensation, can detect third transistor in compensated stage
Threshold voltage.When Organic Light Emitting Diode compensation circuit enters the display stage, the data of the offer of data signal line can be made
Signal is by compensated data-signal.In the display stage, can prevent the threshold voltage shift due to third transistor and
The organic light-emitting diode electric current of influence, to promote the working performance of Organic Light Emitting Diode compensation circuit.
Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is a kind of circuit diagram of Organic Light Emitting Diode compensation circuit provided in an embodiment of the present invention；
Fig. 2 is a kind of driving signal timing diagram of Organic Light Emitting Diode compensation circuit shown in FIG. 1；
Fig. 3 is another driving signal timing diagram of Organic Light Emitting Diode compensation circuit shown in FIG. 1；
Fig. 4 is the circuit diagram of another Organic Light Emitting Diode compensation circuit provided in an embodiment of the present invention；
Fig. 5 is a kind of driving signal timing diagram of Organic Light Emitting Diode compensation circuit shown in Fig. 4；
Fig. 6 is another driving signal timing diagram of Organic Light Emitting Diode compensation circuit shown in Fig. 4；
Fig. 7 is a kind of structural schematic diagram of display panel partial region provided in an embodiment of the present invention；
Fig. 8 is the schematic diagram of one layer of structure of display panel in Fig. 7；
Fig. 9 is the schematic diagram of display panel two-layer structure in Fig. 7；
Figure 10 is the schematic diagram of display panel three-decker in Fig. 7；
Figure 11 is the structural schematic diagram of another display panel partial region provided in an embodiment of the present invention；
Figure 12 is the schematic diagram of one layer of structure of display panel in Figure 11；
Figure 13 is the schematic diagram of display panel two-layer structure in Figure 12；
Figure 14 is the schematic diagram of display panel three-decker in Figure 13；
Figure 15 is another display panel structure schematic diagram provided in an embodiment of the present invention；
Figure 16 is a kind of planar structure schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Referring to FIG. 1, Fig. 1 is a kind of circuit signal of Organic Light Emitting Diode compensation circuit provided in an embodiment of the present invention
Figure, the embodiment of the present invention provide a kind of Organic Light Emitting Diode compensation circuit, comprising:
The first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4, storage capacitance C1 and have
Machine light emitting diode L1；
The grid of the first transistor M1 and the first scan signal line SCAN1 electrical connection, the first pole of the first transistor M1 and
Data signal line SOURCE electrical connection, the second pole of the first transistor M1 and first node N1 electrical connection；
The grid of second transistor M2 and the first LED control signal line EMIT1 electrical connection, the first of second transistor M2
Pole and first voltage signal wire VDD electrical connection, the second pole of second transistor M2 and second node N2 electrical connection；
The grid and first node N1 of third transistor M3 is electrically connected, the first pole of third transistor M3 and second node N2
Electrical connection, the second pole of third transistor M3 and third node N3 electrical connection；
The grid and first control signal line FB of 4th transistor M4 is electrically connected, the first pole of the 4th transistor M4 and sensing
Signal wire SENSING electrical connection, the second pole of the 4th transistor M4 and second node N2 electrical connection；
The first pole plate and first node N1 of storage capacitance C1 is electrically connected, the second pole plate and second node of storage capacitance C1
N2 electrical connection；
The first pole of Organic Light Emitting Diode L1 and third node N3 electrical connection, the second pole of Organic Light Emitting Diode L1 and
Second voltage signal wire VSS electrical connection.
In Organic Light Emitting Diode compensation circuit provided in this embodiment, the first transistor, in the first scanning signal
Under the control of line SCAN, by the data signal transmission of data signal line SOURCE to first node N1；Second transistor is used for
Under the control of first LED control signal line EMIT1, the first voltage signal of first voltage signal wire VDD is transmitted to the second section
Point N2；Third transistor, under the control of first node N1, the signal of second node N2 to be transmitted to organic light emission two
The anode of pole pipe, third transistor are driving transistor；4th transistor, under the control of first control signal line FB,
The sensing signal of sensing signal line SENSING is transmitted to second node N2；Storage capacitance, for storing the voltage received,
And the changing value of the voltage on the second pole plate of itself is coupled on the first pole plate of itself, or by the first pole plate of itself
On the changing value of voltage be coupled on the second pole plate of itself.
Optionally, the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4 are PMOS crystalline substance
Body pipe.In the present embodiment, compared to NMOS transistor, the manufacture craft of PMOS transistor is more simple, thus cost of manufacture compared with
It is low.
Fig. 2 is a kind of driving signal timing diagram of Organic Light Emitting Diode compensation circuit shown in FIG. 1.It needs to illustrate
It is that timing diagram shown in Fig. 2 is only a kind of example, corresponds to the first transistor M1, second transistor M2, third transistor
The case where M3, the 4th transistor M4 are P-type transistor.
In the following, illustrating mending for the Organic Light Emitting Diode compensation circuit of Fig. 1 offer incorporated by reference to reference Fig. 1 and Fig. 2
Repay the working principle in stage.
In some alternative embodiments, the compensated stage of Organic Light Emitting Diode compensation circuit include: first stage T1,
Second stage T2, phase III T3 and fourth stage T4；
T1 in the first stage, the first scan signal line SCAN1 are high level signal, first control signal line FB is high level
Signal, the first LED control signal line EMIT1 are high level signal.In the moment, Organic Light Emitting Diode compensation circuit
Each transistor is off state.
Second stage T2, the first scan signal line SCAN1 are low level signal, first control signal line FB is low level
Signal, the first LED control signal line EMIT1 are high level signal；Sensing signal line SENSING provides sensing voltage signal.?
The moment carries out data write-in to Organic Light Emitting Diode compensation circuit, specifically, the 4th transistor M4 is connected, sensing signal
The sensing voltage signal Vint that line SENSING is provided is transmitted to second node N2.The first transistor M1 conducting, data signal line
The data-signal Vdata of SOURCE is transmitted to first node N1, wherein Vint > Vdata.
Phase III T3, the first scan signal line SCAN1 are low level signal, first control signal line FB is low level
Signal, the first LED control signal line EMIT1 are high level signal；Sensing signal line SENSING is high-impedance state.At this
It carves, the threshold value of third transistor M3 is detected, specifically, since the voltage of second node N2 is Vint, first node N1
Voltage be Vdata, and Vint > Vdata, the as grid voltage of third transistor M3 be less than its source voltage, third crystal
Pipe M3 conducting.Sensing signal line SENSING does not provide electric signal, is high-impedance state, and the voltage of second node N2 can gradually tend to
In the critical value be connected to third transistor M3, until the voltage of second node N2 is Vdata+ ∣ Vth ∣, wherein Vth is third
The threshold voltage of transistor M3.4th transistor M4 conducting, sensing signal line SENSING detect the voltage of second node N2,
Since Vdata is threshold voltage vt h that is known, thus can knowing third transistor M3, to complete for third crystal
The detecting of the threshold voltage of pipe M3.
Fourth stage T4, the first scan signal line SCAN1 are high level signal, first control signal line FB is high level
Signal, the first LED control signal line EMIT1 are high level signal.In the moment, Organic Light Emitting Diode compensation circuit
Each transistor is off state, and the compensated stage of Organic Light Emitting Diode compensation circuit terminates.
In the present embodiment, a kind of Organic Light Emitting Diode compensation circuit of external compensation is provided, it can be in compensated stage
Detect the threshold voltage vt h of third transistor M3.When Organic Light Emitting Diode compensation circuit enters the display stage, can make to count
Data-signal Vdata according to the offer of signal wire SOURCE is by compensated data-signal.In the display stage, can prevent
Due to third transistor M3 threshold voltage shift and the organic light-emitting diode electric current that influences, to promote organic light emission
The working performance of diode compensation circuit.
Fig. 3 is another driving signal timing diagram of Organic Light Emitting Diode compensation circuit shown in FIG. 1.It needs to illustrate
It is that timing diagram shown in Fig. 3 is only a kind of example, corresponds to the first transistor M1, second transistor M2, third transistor
The case where M3, the 4th transistor M4 are P-type transistor.
In the following, illustrating showing for the Organic Light Emitting Diode compensation circuit of Fig. 1 offer incorporated by reference to reference Fig. 1 and Fig. 3
Show the working principle in stage.
In some alternative embodiments, the display stage of Organic Light Emitting Diode compensation circuit includes: first stage T1
With second stage T2；
T1 in the first stage, the first scan signal line SCAN1 are low level signal, first control signal line FB is high level
Signal, the first LED control signal line EMIT1 are low level signal.At the moment, the first scan signal line SCAN1 control first
Transistor M1 conducting, the data-signal Vdata of data signal line SOURCE are transmitted to first node N1；First LED control signal
Line EMIT1 controls second transistor M2 conducting, and the first voltage signal Vdd that first voltage signal wire VDD is provided is transmitted to second
Node N2.Wherein, Vdd > Vdata.
Second stage T2, the first scan signal line SCAN1 are high level signal, first control signal line FB is high level
Signal, the first LED control signal line EMIT1 are low level signal.At the moment, since the voltage of second node N2 is Vdd,
The voltage of first node N1 is Vdata, and Vdd > Vdata, the as grid voltage of third transistor M3 are less than its source voltage,
Third transistor M3 conducting.The first voltage signal Vdd that first voltage signal wire VDD is provided is transmitted to Organic Light Emitting Diode L1
Anode, driving Organic Light Emitting Diode L1 shine.
It should be noted that since Organic Light Emitting Diode compensation circuit shown in FIG. 1 has the function of threshold compensation,
Compensated stage can detect the threshold voltage of third transistor M3, thus, in the display stage, data signal line SOURCE's is mentioned
The data-signal Vdata of confession is by compensated data-signal.In the display stage, can prevent due to third transistor M3's
Threshold voltage shift and the organic light-emitting diode electric current influenced, to promote the work of Organic Light Emitting Diode compensation circuit
Make performance.
In some alternative embodiments, referring to FIG. 4, Organic Light Emitting Diode compensation circuit provided in this embodiment has
Machine light emitting diode compensation circuit further include: the 5th transistor M5 and the 6th transistor M6；
The grid of 5th transistor M5 and the second scan signal line SCAN2 electrical connection, the first pole of the 5th transistor M5 and
Reference voltage signal line VREF electrical connection, the second pole of the 5th transistor M5 and third node N3 electrical connection；6th transistor M6
Grid and the second LED control signal line EMIT2 electrical connection, the first pole of the 6th transistor M6 and third node N3 electrical connection,
The second pole of 6th transistor M6 and the anode electrical connection of Organic Light Emitting Diode L1.
5th transistor, under the control of the second scan signal line SCAN2, by the ginseng of reference voltage signal line VREF
It examines voltage signal and is transmitted to third node N3；6th transistor, under the control of the second LED control signal line EMIT2,
The signal of third node N3 is transmitted to the anode of Organic Light Emitting Diode.
Optionally, the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4 are PMOS crystalline substance
Body pipe.Optionally, the 5th transistor M5 and the 6th transistor M6 is PMOS transistor.
Fig. 5 is a kind of driving signal timing diagram of Organic Light Emitting Diode compensation circuit shown in Fig. 4.It needs to illustrate
It is that timing diagram shown in fig. 5 is only a kind of example, corresponds to the first transistor M1, second transistor M2, third transistor
The case where M3, the 4th transistor M4, the 5th transistor M5 and the 6th transistor M6 are P-type transistor.
In the following, illustrating mending for the Organic Light Emitting Diode compensation circuit of Fig. 4 offer incorporated by reference to reference Fig. 4 and Fig. 5
Repay the working principle in stage.
In some alternative embodiments, the compensated stage of Organic Light Emitting Diode compensation circuit include: first stage T1,
Second stage T2, phase III T3, fourth stage T4, the 5th stage T5, the 6th stage T6, the 7th stage T7 and the 8th stage
T8；
T1 in the first stage, the first scan signal line SCAN1 are high level signal, and the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.Each transistor in the moment, Organic Light Emitting Diode compensation circuit
It is off state.
It is high level signal in second stage T2, the first scan signal line SCAN1, the second scan signal line SCAN2 is low
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the second scan signal line SCAN2 controls third transistor
M3 conducting, the reference voltage Vref that reference voltage signal line VREF is provided are transmitted to third node N3, carry out to third node N3
It resets.
It is high level signal in phase III T3, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the second scan signal line SCAN2 restores high level signal,
Third transistor M3 cut-off is controlled, each transistor in Organic Light Emitting Diode compensation circuit is off state.
It is low level signal in fourth stage T4, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are low level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, data are carried out to Organic Light Emitting Diode compensation circuit and are write
Enter, specifically, the 4th transistor M4 is connected, the sensing voltage signal Vint that sensing signal line SENSING is provided is transmitted to second
Node N2.The first transistor M1 conducting, the data-signal Vdata of data signal line SOURCE are transmitted to first node N1, wherein
Vint>Vdata。
It is low level signal in the 5th stage T5, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are low level signal, and the second LED control signal line EMIT2 is low level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the second LED control signal line EMIT2 control the 6th is brilliant
Body pipe M6 conducting.At the moment, the threshold value of third transistor M3 is detected, specifically, due to the voltage of second node N2
For Vint, the voltage of first node N1 is Vdata, and Vint > Vdata, the as grid voltage of third transistor M3 are less than it
Source voltage, third transistor M3 conducting.Sensing signal line SENSING does not provide electric signal, is high-impedance state, second node N2
Voltage can gradually be intended to the critical value be connected to third transistor M3, as until the voltage of second node N2 reaches
Vdata+ ∣ Vth ∣, wherein Vth is the threshold voltage of third transistor M3.4th transistor M4 conducting, sensing signal line
SENSING detects the voltage of second node N2, since Vdata is threshold that is known, thus can knowing third transistor M3
Threshold voltage Vth, to complete the detecting of the threshold voltage for third transistor M3.
It is low level signal in the 6th stage T6, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is low level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, first control signal line FB controls the 4th transistor and cuts
Only, sensing signal line SENSING stops the threshold voltage of detecting third transistor.
It is high level signal in the 7th stage T7, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is low level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the first scan signal line SCAN1 controls the first transistor
M1 cut-off.
It is high level signal in the 8th stage T8, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the second LED control signal line EMIT2 control the 6th is brilliant
The cut-off of body pipe.So far, the compensated stage of Organic Light Emitting Diode compensation circuit provided in this embodiment terminates, and completes for third
The threshold value of transistor is detected.
In the present embodiment, a kind of Organic Light Emitting Diode compensation circuit of external compensation is provided, it can be in compensated stage
Detect the threshold voltage vt h of third transistor M3.When Organic Light Emitting Diode compensation circuit enters the display stage, can make to count
Data-signal Vdata according to the offer of signal wire SOURCE is by compensated data-signal.In the display stage, can prevent
Due to third transistor M3 threshold voltage shift and the organic light-emitting diode electric current that influences, to promote organic light emission
The working performance of diode compensation circuit.Also, in the present embodiment, Organic Light Emitting Diode compensation circuit includes the 5th transistor
M5 and the 6th transistor M6, the 5th transistor M5 are controlled by the second scan signal line SCAN2, can be answered third section N3
Position, as resets the anode of Organic Light Emitting Diode, to promote the work of Organic Light Emitting Diode compensation circuit
Performance.6th transistor M6 is controlled by the second LED control signal line EMIT2, in the display stage, can pass through the second hair of control
The duty ratio of signal, adjusts the fluorescent lifetime of Organic Light Emitting Diode on optical control signal line EMIT2.
Fig. 6 is a kind of driving signal timing diagram of Organic Light Emitting Diode compensation circuit shown in Fig. 4.It needs to illustrate
It is that timing diagram shown in fig. 6 is only a kind of example, corresponds to the first transistor M1, second transistor M2, third transistor
The case where M3, the 4th transistor M4, the 5th transistor M5 and the 6th transistor M6 are P-type transistor.
In the following, illustrating showing for the Organic Light Emitting Diode compensation circuit of Fig. 4 offer incorporated by reference to reference Fig. 4 and Fig. 6
Show the working principle in stage.
In some alternative embodiments, the display stage of Organic Light Emitting Diode compensation circuit include: first stage T1,
Second stage T2, phase III T3, fourth stage T4, the 5th stage T5, the 6th stage T6, the 7th stage T7, the 8th stage T8
With the 9th stage T9；
T1 in the first stage, the first scan signal line SCAN1 are high level signal, and the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is low level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the second LED control signal line EMIT2 control the 6th is brilliant
Body pipe M6 conducting, remaining transistor are turned off.
It is high level signal in second stage T2, the first scan signal line SCAN1, the second scan signal line SCAN2 is low
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is low level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the second scan signal line SCAN2 controls the 5th transistor
M5 conducting, the reference voltage Vref that reference voltage signal line VREF is provided are transmitted to third node N3, carry out to third node N3
It resets.
It is high level signal in phase III T3, the first scan signal line SCAN1, the second scan signal line SCAN2 is low
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the second LED control signal line EMIT2 control the 6th is brilliant
Body pipe M6 cut-off.
It is high level signal in fourth stage T4, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, all transistors are off state.
It is low level signal in the 5th stage T5, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are low level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, data are carried out to Organic Light Emitting Diode compensation circuit and are write
Enter, specifically, first control signal line FB controls the 4th transistor M4 conducting, the sensing that sensing signal line SENSING is provided is electric
Pressure signal Vint is transmitted to second node N2.First scan signal line SCAN1 controls the first transistor M1 conducting, data signal line
The data-signal Vdata of SOURCE is transmitted to first node N1, wherein Vint > Vdata.Since the voltage of second node N2 is
The voltage of Vint, first node N1 are Vdata, and Vint > Vdata, the as grid voltage of third transistor M3 are less than its source
Pole tension, third transistor M3 conducting.
It is high level signal in the 6th stage T6, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are low level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, the first scan signal line SCAN1 controls the first transistor
The data-signal Vdata of M1 cut-off, data signal line SOURCE stops write-in.Third transistor M3 is kept under the action of capacitor
Conducting.
It is high level signal in the 7th stage T7, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is high level signal.At the moment, first control signal line FB controls the 4th transistor M4 and cuts
Only, the sensing voltage signal Vint that sensing signal line SENSING is provided stops write-in.Third transistor M3 is under the action of capacitor
It is held on.
It is high level signal in the 8th stage T8, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is high level signal, the
One LED control signal line EMIT1 is low level signal.At the moment, the first LED control signal line EMIT1 control second is brilliant
Body pipe M2 conducting, third transistor M3 are held under the action of capacitor, the first voltage that first voltage signal wire VDD is provided
Signal Vdd is transmitted to second node N2 third node N3.
It is high level signal in the 9th stage T9, the first scan signal line SCAN1, the second scan signal line SCAN2 is height
Level signal, first control signal line FB are high level signal, and the second LED control signal line EMIT2 is low level signal, the
One LED control signal line EMIT1 is low level signal.At the moment, the second LED control signal line EMIT2 control the 6th is brilliant
Body pipe M6 conducting, the first voltage signal Vdd that first voltage signal wire VDD is provided are transmitted to the sun of Organic Light Emitting Diode L1
Pole, driving Organic Light Emitting Diode L1 shine.
It should be noted that since Organic Light Emitting Diode compensation circuit provided in this embodiment has the function of threshold compensation
Can, the threshold voltage of third transistor M3 can be detected in compensated stage, thus, in the display stage, data signal line
The data-signal Vdata of the offer of SOURCE is by compensated data-signal.In the display stage, can prevent due to third
The threshold voltage shift of transistor M3 and the organic light-emitting diode electric current influenced, to promote Organic Light Emitting Diode benefit
Repay the working performance of circuit.And it is possible to be adjusted by the duty ratio of signal on the second LED control signal line EMIT2 of control
The fluorescent lifetime of Organic Light Emitting Diode, to meet different use demands.
Fig. 7, Fig. 8, Fig. 9 and Figure 10 are please referred to, Fig. 7 is a kind of display panel partial region provided in an embodiment of the present invention
Structural schematic diagram, Fig. 8 be the schematic diagram of one layer of structure of display panel in Fig. 7, and Fig. 9 is that display panel two-layer structure is shown in Fig. 7
It is intended to, Figure 10 is the schematic diagram of display panel three-decker in Fig. 7, and the embodiment of the present invention provides a kind of display panel, comprising:
Substrate 00；
The semiconductor M1a of the first transistor M1, is set on substrate 00；
The semiconductor M2a of second transistor M2, is set on substrate 00；
The semiconductor M3a of third transistor M3, is set on substrate 00；
The semiconductor M4a of 4th transistor M4 is set on substrate 00；
Gate insulation layer covers the semiconductor M1a of the first transistor M1, the semiconductor M2a of second transistor M2, third crystal
The semiconductor M4a of the semiconductor M3a of pipe M3, the 4th transistor M4；
The grid M1b of the first transistor M1, the semiconductor M1a weight on gate insulation layer and with the first transistor M1
It is folded；
The grid M2b of second transistor M2, the semiconductor M2a weight on gate insulation layer and with second transistor M2
It is folded；
The grid M3b of third transistor M3, the semiconductor M3a weight on gate insulation layer and with third transistor M3
It is folded；
The grid M4b of 4th transistor M4 is on gate insulation layer and heavy with the semiconductor M4a of the 4th transistor M4
It is folded；
The first pole plate of storage capacitance C1, the grid M3b being set on substrate and with third transistor M3 are Chong Die；
Auxiliary insulating layer covers grid M1b, the grid M2b of second transistor M2, third transistor of the first transistor M1
The first pole plate of the grid M3b of M3, the grid M4b of the 4th transistor M4, storage capacitance C1；
The second pole plate of storage capacitance C1 is set on substrate and Chong Die with the first pole plate；
Interlayer insulating film covers the second pole plate of storage capacitance C1；
First scan signal line SCAN1 is disposed on the substrate and extends along first direction X；
Data signal line SOURCE, is disposed on the substrate and Y extends in a second direction；Second direction Y and first direction X
Intersection；
First LED control signal line EMIT1 is disposed on the substrate and extends along first direction X；
First voltage signal wire VDD, is disposed on the substrate and Y extends in a second direction；
First control signal line FB is disposed on the substrate and extends along first direction X；
Sensing signal line SENSING, is disposed on the substrate and Y extends in a second direction；
The grid M1b of the first transistor M1 and the first scan signal line SCAN1 electrical connection, the first pole of the first transistor M1
M1c and data signal line SOURCE electrical connection, the first pole plate of the second pole M1d and storage capacitance C1 of the first transistor M1 are electrically connected
It connects；
The grid M2b of second transistor M2 and the first LED control signal line EMIT1 electrical connection, the of second transistor M2
One pole M2c and first voltage signal wire VDD electrical connection, the second pole M2d of second transistor M2 and the second pole of storage capacitance C1
Plate electrical connection；
The first pole plate of the grid M3b and storage capacitance C1 of third transistor M3 are electrically connected, and the first of third transistor M3
The second pole plate of pole M3c and storage capacitance C1 is electrically connected；
The grid M4b and first control signal line FB of 4th transistor M4 is electrically connected, the first pole M4c of the 4th transistor M4
It is electrically connected with sensing signal line SENSING, the second pole plate of the second pole M4d and storage capacitance C1 of the 4th transistor M4 are electrically connected
It connects.
In some alternative embodiments, with continued reference to FIG. 7, the first scan signal line SCAN1, the first light emitting control letter
Number line EMIT1, first control signal line FB, storage capacitance C1 the first pole plate be located at the first metal layer；
Data signal line SOURCE, sensing signal line SENSING, first voltage signal wire VDD are located at second metal layer；
The second pole plate of storage capacitance C1 is located at auxiliary metal layer.
In some alternative embodiments, Figure 11, Figure 12, Figure 13 and Figure 14 are please referred to, Figure 11 is that the embodiment of the present invention mentions
The structural schematic diagram of another the display panel partial region supplied, Figure 12 is the schematic diagram of one layer of structure of display panel in Figure 11,
Figure 13 is the schematic diagram of display panel two-layer structure in Figure 12, and Figure 14 is the schematic diagram of display panel three-decker in Figure 13, is had
Machine light emitting diode compensation circuit further include: the 5th transistor M5 and the 6th transistor M6；
The semiconductor M5a of 5th transistor M5 is set on substrate 00；
The semiconductor M6a of 6th transistor M6 is set on substrate 00；
Gate insulation layer covers the semiconductor M6a of the semiconductor M5a of the 5th transistor M5, the 6th transistor M6；
The grid M5b of 5th transistor M5 is on gate insulation layer and heavy with the semiconductor M5a of the 5th transistor M5
It is folded；
The grid M6b of 6th transistor M6 is on gate insulation layer and heavy with the semiconductor M6a of the 6th transistor M6
It is folded；
Auxiliary insulating layer covers the grid M6b of the grid M5b of the 5th transistor M5, the 6th transistor M6；
Second scan signal line SCAN2 is disposed on the substrate and extends along first direction X；
Reference voltage signal line VREF is disposed on the substrate and extends along first direction X；
In some alternative embodiments, please continue to refer to Figure 11, the second scan signal line SCAN2 and the first scanning signal
Line SCAN1 is arranged in same layer；
The second pole plate of reference voltage signal line VREF and storage capacitance C1 is arranged in same layer.
Optionally, please continue to refer to Figure 11, the second pole plate of storage capacitance C1 is located at auxiliary metal layer, auxiliary metal layer position
Between the first metal layer and second metal layer.
In some alternative embodiments, Figure 15 is please referred to, Figure 15 is another display surface provided in an embodiment of the present invention
Plate structural schematic diagram, display panel 1000A include: multiple sub-pixel PP arranged in arrays, and each sub-pixel PP includes organic
Light emitting diode compensation circuit；
Organic Light Emitting Diode compensation circuit can refer to Fig. 7 to Figure 10, comprising: the first transistor M1, second transistor
M2, third transistor M3, the 4th transistor M4, storage capacitance C1 and Organic Light Emitting Diode L1；
Wherein, believe positioned at the first pole M1c of the first transistor M1 of all sub-pixel PP of same row and same sensing
Number line SENSING electrical connection.
Optionally, display panel includes viewing area AA, and multiple sub-pixel PP are located in the AA of viewing area.It should be noted that
In Figure 15, only it is illustrated so that Organic Light Emitting Diode compensation circuit 201 is at array arrangement as an example.The present embodiment is for organic hair
Specific arrangement mode of the optical diode compensation circuit 201 in display panel is not specifically limited.
Display panel provided in an embodiment of the present invention has Organic Light Emitting Diode provided in an embodiment of the present invention compensation electricity
The beneficial effect on road can specifically refer to the various embodiments described above illustrating for Organic Light Emitting Diode compensation circuit, this
Details are not described herein for embodiment.
The embodiment of the present invention provides a kind of display device, including display panel provided in an embodiment of the present invention.Please refer to figure
16, Figure 16 be a kind of planar structure schematic diagram of display device provided in an embodiment of the present invention.The display device that Figure 16 is provided
1000 include the display panel 1000A that any of the above-described embodiment of the present invention provides.Figure 16 embodiment only takes the mobile phone as an example, to display
Device 1000 is illustrated, it is to be understood that display device provided in an embodiment of the present invention can be computer, TV, vehicle-mounted
Other display devices having a display function such as display device, the present invention are not specifically limited this.The embodiment of the present invention provides
Display device, with display panel provided in an embodiment of the present invention beneficial effect, can specifically refer to the various embodiments described above
For illustrating for display panel, details are not described herein for the present embodiment.
Through the foregoing embodiment it is found that Organic Light Emitting Diode compensation circuit, display panel and display provided by the invention
Device, at least realize it is following the utility model has the advantages that
Organic Light Emitting Diode compensation circuit has the function of external compensation, can detect third transistor in compensated stage
Threshold voltage.When Organic Light Emitting Diode compensation circuit enters the display stage, the data of the offer of data signal line can be made
Signal is by compensated data-signal.In the display stage, can prevent the threshold voltage shift due to third transistor and
The organic light-emitting diode electric current of influence, to promote the working performance of Organic Light Emitting Diode compensation circuit.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (15)
1. a kind of Organic Light Emitting Diode compensation circuit characterized by comprising
The first transistor, second transistor, third transistor, the 4th transistor, storage capacitance and Organic Light Emitting Diode；
The grid of the first transistor and the electrical connection of the first scan signal line, the first pole sum number of the first transistor it is believed that
The electrical connection of number line, the second pole of the first transistor and first node electrical connection；
The grid of the second transistor and the electrical connection of the first LED control signal line, the first pole of the second transistor and the
The electrical connection of one voltage signal line, the second pole of the second transistor and second node electrical connection；
The grid of the third transistor and first node electrical connection, the first pole of the third transistor and described second
Node electrical connection, the second pole of the third transistor and the electrical connection of third node；
The grid and first control signal line of 4th transistor are electrically connected, the first pole of the 4th transistor and sensing letter
The electrical connection of number line, the second pole of the 4th transistor and second node electrical connection；
First pole plate of the storage capacitance and first node electrical connection, the second pole plate of the storage capacitance and described the
The electrical connection of two nodes；
First pole of the Organic Light Emitting Diode and third node electrical connection, the second pole of the Organic Light Emitting Diode
It is electrically connected with second voltage signal wire.
2. Organic Light Emitting Diode compensation circuit according to claim 1, which is characterized in that
The Organic Light Emitting Diode compensation circuit further include: the 5th transistor and the 6th transistor；
The grid of 5th transistor and the electrical connection of the second scan signal line, the first pole of the 5th transistor and reference electricity
Press signal wire electrical connection, the second pole of the 5th transistor and third node electrical connection；
The grid of 6th transistor and the electrical connection of the second LED control signal line, the first pole of the 6th transistor and institute
State the electrical connection of third node, the second pole of the 6th transistor and the anode electrical connection of the Organic Light Emitting Diode.
3. Organic Light Emitting Diode compensation circuit according to claim 1, which is characterized in that
The first transistor, the second transistor, the third transistor, the 4th transistor are PMOS crystal
Pipe.
4. Organic Light Emitting Diode compensation circuit according to claim 2, which is characterized in that
5th transistor and the 6th transistor are PMOS transistor.
5. Organic Light Emitting Diode compensation circuit according to claim 3, which is characterized in that
The compensated stage of the Organic Light Emitting Diode compensation circuit includes: first stage, second stage, phase III and the 4th
Stage；
In the first stage, first scan signal line is high level signal, the first control signal line is high level
Signal, the first LED control signal line are high level signal；
In the second stage, first scan signal line is low level signal, the first control signal line is low level
Signal, the first LED control signal line are high level signal；The sensing signal line provides sensing voltage signal；
In the phase III, first scan signal line is low level signal, the first control signal line is low level
Signal, the first LED control signal line are high level signal；The sensing signal line is high-impedance state；
In the fourth stage, first scan signal line is high level signal, the first control signal line is high level
Signal, the first LED control signal line are high level signal.
6. Organic Light Emitting Diode compensation circuit according to claim 3, which is characterized in that
The display stage of the Organic Light Emitting Diode compensation circuit includes: first stage and second stage；
In the first stage, first scan signal line is low level signal, the first control signal line is high level
Signal, the first LED control signal line are low level signal；
In the second stage, first scan signal line is high level signal, the first control signal line is high level
Signal, the first LED control signal line are low level signal.
7. Organic Light Emitting Diode compensation circuit according to claim 4, which is characterized in that
The compensated stage of the Organic Light Emitting Diode compensation circuit includes: first stage, second stage, phase III, the 4th
Stage, the 5th stage, the 6th stage, the 7th stage and the 8th stage；
In the first stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the second stage, first scan signal line is high level signal, and second scan signal line is low level
Signal, the first control signal line are high level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the phase III, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the fourth stage, first scan signal line is low level signal, and second scan signal line is high level
Signal, the first control signal line are low level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the 5th stage, first scan signal line is low level signal, and second scan signal line is high level
Signal, the first control signal line are low level signal, and the second LED control signal line is low level signal, described the
One LED control signal line is high level signal；
In the 6th stage, first scan signal line is low level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is low level signal, described the
One LED control signal line is high level signal；
In the 7th stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is low level signal, described the
One LED control signal line is high level signal；
In the 8th stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal.
8. Organic Light Emitting Diode compensation circuit according to claim 4, which is characterized in that
The display stage of the Organic Light Emitting Diode compensation circuit includes: first stage, second stage, phase III, the 4th
Stage, the 5th stage, the 6th stage, the 7th stage, the 8th stage and the 9th stage；
In the first stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is low level signal, described the
One LED control signal line is high level signal；
In the second stage, first scan signal line is high level signal, and second scan signal line is low level
Signal, the first control signal line are high level signal, and the second LED control signal line is low level signal, described the
One LED control signal line is high level signal；
In the phase III, first scan signal line is high level signal, and second scan signal line is low level
Signal, the first control signal line are high level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the fourth stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the 5th stage, first scan signal line is low level signal, and second scan signal line is high level
Signal, the first control signal line are low level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the 6th stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are low level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the 7th stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is high level signal；
In the 8th stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is high level signal, described the
One LED control signal line is low level signal；
In the 9th stage, first scan signal line is high level signal, and second scan signal line is high level
Signal, the first control signal line are high level signal, and the second LED control signal line is low level signal, described the
One LED control signal line is low level signal.
9. a kind of display panel characterized by comprising substrate；
The semiconductor of the first transistor is set on the substrate；
The semiconductor of the second transistor is set on the substrate；
The semiconductor of the third transistor is set on the substrate；
The semiconductor of 4th transistor, is set on the substrate；
It is brilliant to cover the semiconductor of the first transistor, the semiconductor of the second transistor, the third for gate insulation layer
The semiconductor of the semiconductor of body pipe, the 4th transistor；
The grid of the first transistor, the semiconductor weight on the gate insulation layer and with the first transistor
It is folded；
The grid of the second transistor, the semiconductor weight on the gate insulation layer and with the second transistor
It is folded；
The grid of the third transistor, the semiconductor weight on the gate insulation layer and with the third transistor
It is folded；
The grid of 4th transistor, the semiconductor weight on the gate insulation layer and with the third transistor
It is folded；
First pole plate of the storage capacitance, is set to the gate overlap on the substrate and with the third transistor；
Auxiliary insulating layer covers the grid of the first transistor, the grid of the second transistor, the third transistor
Grid, the grid of the 4th transistor, the storage capacitance the first pole plate；
Second pole plate of the storage capacitance is set on the substrate and Chong Die with first pole plate；
Interlayer insulating film covers the second pole plate of the storage capacitance；
First scan signal line is arranged on the substrate and extends in a first direction；
The data signal line, setting extend on the substrate and in a second direction；The second direction and described first
Direction intersection；
The first LED control signal line, setting extend on the substrate and along the first direction；
The first voltage signal wire, setting extend on the substrate and along the second direction；
The first control signal line, setting extend on the substrate and along the first direction；
The sensing signal line, setting extend on the substrate and along the second direction；
The grid of the first transistor and first scan signal line electrical connection, the first pole of the first transistor and institute
State data signal line electrical connection, the second pole of the first transistor and the first pole plate electrical connection of the storage capacitance；
The grid of the second transistor and the first LED control signal line electrical connection, the first pole of the second transistor
It is electrically connected with the first voltage signal wire, the second pole of the second transistor and the second pole plate of the storage capacitance are electrically connected
It connects；
The grid of the third transistor and the electrical connection of the first pole plate of the storage capacitance, the first pole of the third transistor
It is electrically connected with the second pole plate of the storage capacitance；
The grid and first control signal line of 4th transistor are electrically connected, the first pole of the 4th transistor and sensing letter
The electrical connection of number line, the second pole of the 4th transistor and the second pole plate electrical connection of the storage capacitance.
10. display panel according to claim 9, which is characterized in that
First scan signal line, the first LED control signal line, the first control signal line, the storage capacitance
The first pole plate be located at the first metal layer；
The data signal line, the sensing signal line, the first voltage signal wire are located at second metal layer；
Second pole plate of the storage capacitance is located at auxiliary metal layer.
11. display panel according to claim 9, which is characterized in that
The Organic Light Emitting Diode compensation circuit further include: the 5th transistor and the 6th transistor；
The semiconductor of 5th transistor, is set on the substrate；
The semiconductor of 6th transistor, is set on the substrate；
The gate insulation layer covers the semiconductor of the semiconductor of the 5th transistor, the 6th transistor；
The grid of 5th transistor, the semiconductor weight on the gate insulation layer and with the 5th transistor
It is folded；
The grid of 6th transistor, the semiconductor weight on the gate insulation layer and with the 6th transistor
It is folded；
The auxiliary insulating layer covers the grid of the grid of the 5th transistor, the 6th transistor；
Second scan signal line, setting extend on the substrate and along the first direction；
The reference voltage signal line, setting extend on the substrate and along the first direction.
12. display panel according to claim 11, which is characterized in that
Second scan signal line and first scan signal line are arranged in same layer；
The reference voltage signal line and the second pole plate of the storage capacitance are arranged in same layer.
13. display panel according to claim 10, which is characterized in that
Second pole plate of the storage capacitance is located at auxiliary metal layer, and the auxiliary metal layer is located at the first metal layer and institute
It states between second metal layer.
14. display panel according to claim 9, which is characterized in that
The display panel includes: multiple sub-pixels arranged in arrays, and each sub-pixel includes Organic Light Emitting Diode compensation
Circuit；
The Organic Light Emitting Diode compensation circuit includes: the first transistor, the second transistor, the third crystal
Pipe, the 4th transistor, the storage capacitance and Organic Light Emitting Diode；
Wherein, positioned at sensing signal line described in the first pole of the first transistor of all sub-pixels of same row and same
Electrical connection.
15. a kind of display device, including display panel according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811010765.8A CN109102775B (en) | 2018-08-31 | 2018-08-31 | Organic light emitting diode compensation circuit, display panel and display device |
| US16/376,050 US10748490B2 (en) | 2018-08-31 | 2019-04-05 | Organic light emitting diode (OLED) compensation circuit, display panel and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811010765.8A CN109102775B (en) | 2018-08-31 | 2018-08-31 | Organic light emitting diode compensation circuit, display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109102775A true CN109102775A (en) | 2018-12-28 |
| CN109102775B CN109102775B (en) | 2021-02-02 |
Family
ID=64864550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811010765.8A Active CN109102775B (en) | 2018-08-31 | 2018-08-31 | Organic light emitting diode compensation circuit, display panel and display device |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US10748490B2 (en) |
| CN (1) | CN109102775B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071265A (en) * | 2020-09-15 | 2020-12-11 | 武汉华星光电半导体显示技术有限公司 | Pixel compensation circuit and display panel |
| CN112489599A (en) * | 2020-12-23 | 2021-03-12 | 武汉华星光电半导体显示技术有限公司 | AMOLED pixel driving circuit, driving method and display panel |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220094876A (en) * | 2020-12-29 | 2022-07-06 | 엘지디스플레이 주식회사 | Light Emitting Display Device and Driving Method of the same |
| KR20220158883A (en) * | 2021-05-24 | 2022-12-02 | 삼성디스플레이 주식회사 | Display device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040059799A (en) * | 2002-12-30 | 2004-07-06 | 주식회사 하이닉스반도체 | OELD with improved luminescence |
| KR100836431B1 (en) * | 2007-02-05 | 2008-06-09 | 삼성에스디아이 주식회사 | Pixel and organic light emitting display device using the pixel |
| CN103354079A (en) * | 2013-06-26 | 2013-10-16 | 京东方科技集团股份有限公司 | Pixel unit circuit for organic LED of active matrix, and display panel |
| CN103578426A (en) * | 2012-08-02 | 2014-02-12 | 三星显示有限公司 | Organic light emitting diode display |
| CN103903556A (en) * | 2012-12-24 | 2014-07-02 | 乐金显示有限公司 | Organic light emitting diode display device and method for driving the same |
| WO2015167227A1 (en) * | 2014-04-30 | 2015-11-05 | 네오뷰코오롱 주식회사 | Apparatus and method for compensating brightness deviation of organic light emitting display device |
| CN106373528A (en) * | 2016-10-28 | 2017-02-01 | 上海天马微电子有限公司 | Display device, pixel driving circuit and a pixel driving method |
| US20170061877A1 (en) * | 2015-08-24 | 2017-03-02 | Samsung Display Co., Ltd. | Pixel circuit and organic light emitting display device having the same |
| CN106558287A (en) * | 2017-01-25 | 2017-04-05 | 上海天马有机发光显示技术有限公司 | Organic light emissive pixels drive circuit, driving method and organic electroluminescence display panel |
| CN106652904A (en) * | 2017-03-17 | 2017-05-10 | 京东方科技集团股份有限公司 | Pixel drive circuit, drive method thereof, and display device |
| CN107492344A (en) * | 2017-08-18 | 2017-12-19 | 深圳市华星光电半导体显示技术有限公司 | Pixel-driving circuit, OLED display devices for OLED display devices |
| CN107680527A (en) * | 2017-10-13 | 2018-02-09 | 友达光电股份有限公司 | Pixel Circuit And Driving Method |
| CN107808636A (en) * | 2017-11-10 | 2018-03-16 | 武汉华星光电半导体显示技术有限公司 | A kind of pixel-driving circuit and liquid crystal display device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9236011B2 (en) * | 2011-08-30 | 2016-01-12 | Lg Display Co., Ltd. | Organic light emitting diode display device for pixel current sensing in the sensing mode and pixel current sensing method thereof |
| KR101399159B1 (en) * | 2011-12-01 | 2014-05-28 | 엘지디스플레이 주식회사 | Organic light-emitting display device |
| KR20140066830A (en) * | 2012-11-22 | 2014-06-02 | 엘지디스플레이 주식회사 | Organic light emitting display device |
| KR102404485B1 (en) * | 2015-01-08 | 2022-06-02 | 삼성디스플레이 주식회사 | Organic Light Emitting Display Device |
| CN107134258B (en) | 2017-06-26 | 2019-10-08 | 京东方科技集团股份有限公司 | OLED compensation circuit and preparation method thereof, OLED compensation device and display device |
-
2018
- 2018-08-31 CN CN201811010765.8A patent/CN109102775B/en active Active
-
2019
- 2019-04-05 US US16/376,050 patent/US10748490B2/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040059799A (en) * | 2002-12-30 | 2004-07-06 | 주식회사 하이닉스반도체 | OELD with improved luminescence |
| KR100836431B1 (en) * | 2007-02-05 | 2008-06-09 | 삼성에스디아이 주식회사 | Pixel and organic light emitting display device using the pixel |
| CN103578426A (en) * | 2012-08-02 | 2014-02-12 | 三星显示有限公司 | Organic light emitting diode display |
| CN103903556A (en) * | 2012-12-24 | 2014-07-02 | 乐金显示有限公司 | Organic light emitting diode display device and method for driving the same |
| CN103354079A (en) * | 2013-06-26 | 2013-10-16 | 京东方科技集团股份有限公司 | Pixel unit circuit for organic LED of active matrix, and display panel |
| WO2015167227A1 (en) * | 2014-04-30 | 2015-11-05 | 네오뷰코오롱 주식회사 | Apparatus and method for compensating brightness deviation of organic light emitting display device |
| US20170061877A1 (en) * | 2015-08-24 | 2017-03-02 | Samsung Display Co., Ltd. | Pixel circuit and organic light emitting display device having the same |
| CN106373528A (en) * | 2016-10-28 | 2017-02-01 | 上海天马微电子有限公司 | Display device, pixel driving circuit and a pixel driving method |
| CN106558287A (en) * | 2017-01-25 | 2017-04-05 | 上海天马有机发光显示技术有限公司 | Organic light emissive pixels drive circuit, driving method and organic electroluminescence display panel |
| CN106652904A (en) * | 2017-03-17 | 2017-05-10 | 京东方科技集团股份有限公司 | Pixel drive circuit, drive method thereof, and display device |
| CN107492344A (en) * | 2017-08-18 | 2017-12-19 | 深圳市华星光电半导体显示技术有限公司 | Pixel-driving circuit, OLED display devices for OLED display devices |
| CN107680527A (en) * | 2017-10-13 | 2018-02-09 | 友达光电股份有限公司 | Pixel Circuit And Driving Method |
| CN107808636A (en) * | 2017-11-10 | 2018-03-16 | 武汉华星光电半导体显示技术有限公司 | A kind of pixel-driving circuit and liquid crystal display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071265A (en) * | 2020-09-15 | 2020-12-11 | 武汉华星光电半导体显示技术有限公司 | Pixel compensation circuit and display panel |
| CN112489599A (en) * | 2020-12-23 | 2021-03-12 | 武汉华星光电半导体显示技术有限公司 | AMOLED pixel driving circuit, driving method and display panel |
| CN112489599B (en) * | 2020-12-23 | 2022-09-27 | 武汉华星光电半导体显示技术有限公司 | AMOLED pixel driving circuit, driving method and display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109102775B (en) | 2021-02-02 |
| US10748490B2 (en) | 2020-08-18 |
| US20200074927A1 (en) | 2020-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210248959A1 (en) | Pixel and organic light-emitting display device including the same | |
| CN105139804B (en) | A kind of pixel-driving circuit, display panel and its driving method and display device | |
| CN109102775A (en) | organic light emitting diode compensation circuit, display panel and display device | |
| KR101995714B1 (en) | Display device | |
| CN104252835A (en) | Organic light emitting diode display and driving method thereof | |
| CN107393469B (en) | A kind of pixel compensation method, pixel compensation device and display device | |
| CN106920510B (en) | Organic light emitting display and its driving method | |
| CN104933991B (en) | Pixel-driving circuit, display base plate and its driving method, display device | |
| CN106448562A (en) | Display panel and display equipment | |
| CN107481675A (en) | Pixel-driving circuit and its driving method, array base palte and display device | |
| US20080055208A1 (en) | Emission driver and electroluminescent display including such an emission driver | |
| CN112233619A (en) | Pixel driving circuit and driving method thereof, display panel and display device | |
| KR20220051619A (en) | Display panel and display device using the same | |
| CN218886802U (en) | Pixel circuit and display device | |
| KR20160110666A (en) | Display panel and display apparatus having them | |
| US11537350B2 (en) | Infinitely expandable display apparatus based on electroluminescent display type and driving method thereof | |
| US11495167B2 (en) | Infinitely expandable display device | |
| CN115206943A (en) | Display device | |
| CN113508430B (en) | Pixel circuit, display substrate and display device | |
| CN108717842A (en) | Pixel circuit and its driving method, organic electroluminescence device, display device | |
| US20230096265A1 (en) | Gate driving circuit and display device including the same | |
| CN207182881U (en) | Pixel-driving circuit, array base palte and display device | |
| KR20060076041A (en) | Organic light-emitting diode display device | |
| CN114141185A (en) | Display device | |
| CN114648959A (en) | Gate drive circuit and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |